I am a mod on a similarly hostile StackExchange site. The community has always been outright hostile to active discussion (outside of chat, the area of the site for specifically this) for all but a brief period when it was still working out what it was. The fact it's hostile to active discussion is part of what enables it to continue to be a useful resource.
That's not to say Stack Overflow isn't without its problems, but it's more the hostility (something which we're trying to address[1]) that's the problem than the stance against active discussion.
[1]: https://meta.stackexchange.com/questions/240839/the-new-new-...